Using text-to-speech (TTS)

Last Updated : Mar 12, 2025 |
Prolog information
The voicemail service can use text-to-speech (TTS) for several functions:
  • Automatically provide an entry prompt for actions using the action's description text.
  • Add spoken prompt's during a call flow using Speak Text actions.
  • Perform email reading.
  • Speech recognition (on subscription IP Office systems using Google speech).
Depending on the type of IP Office server, you can add TTS using the following methods:
Method
Description
Local TTS
  • Local TTS is supported by PLDS licenses and subscription IP Office system. Languages are added by installing files on the same server as the Voicemail Pro service.
    • PLDS licensed IP Office systems require TTS licenses.
    • Subscription IP Office systems do not require any additional subscriptions.
  • Languages: Brazilian (Portuguese), Chinese (Mandarin), Danish, Dutch, English (UK), English (US), Finish, French, French (Canadian), German, Greek, Norwegian, Polish, Portuguese, Russian, Spanish, Spanish (Colombian) and Swedish.
Google speech TTS
  • Google speech is supported on subscription IP Office systems only. It uses internet connect to Google to generate prompt when required.
    • Subscription IP Office systems do not require any additional subscriptions.
  • Languages: Arabic, Brazilian Portuguese, Czech, Danish, Dutch, English (Australian), English (UK), English (US), Finish, French, French (Canadian), German, Greek, Hungarian, Italian, Japanese, Norwegian, Polish, Portuguese, Spanish, Swedish and Turkish.
  • Using Google speech automatically overrides any local TTS services.